Non‐similar solution for unsteady water boundary layer flows over a sphere with non‐uniform mass transfer
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 2 August 2013
Abstract
Purpose
The purpose of this paper is to make an analysis to study the non‐similar solution for unsteady water boundary layer flow over sphere with the influence of temperature‐dependent viscosity, Prandtl number, non‐uniform surface mass transfer and heat transfer.
Design/methodology/approach
The governing quasi‐linear partial differential equations have been solved numerically using an implicit finite difference scheme along with a quasi‐linearization technique. Non‐similar solutions have been obtained from the starting point of the stream‐wise coordinate to the point where the skin friction value vanishes.
Findings
It is observed that non‐uniform suction causes the point of vanishing skin friction to move downstream. The slot injection causes the vanishing skin friction to move upstream.
Originality/value
The effect of unsteadiness is more significant on the skin friction as compared to the heat transfer.
Keywords
Citation
Revathi, G., Saikrishnan, P. and Chamkha, A. (2013), "Non‐similar solution for unsteady water boundary layer flows over a sphere with non‐uniform mass transfer", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 23 No. 6, pp. 1104-1116. https://doi.org/10.1108/HFF-10-2011-0197
Publisher
:Emerald Group Publishing Limited
Copyright © 2013, Emerald Group Publishing Limited